550/750 pump upgrade
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  1. #1
    PWCToday Regular
    Join Date
    Aug 2014
    Location
    Wisconsin
    Age
    21
    Posts
    124

    550/750 pump upgrade

    I'm looking at putting a 750 pump in my 550sx hull. Im running a 750 motor with a single 46 mikuni and a 650 west coast pipe. The 750 pump has a 14/19 impeller in it. How much of a difference will I notice? is it worth the money?

  2. #2
    Top Dog bandit88's Avatar
    Join Date
    May 2014
    Location
    Green Bay WI
    Age
    30
    Posts
    1,952

    Re: 550/750 pump upgrade

    That impeller will be way to steep, you will need to drop it down to around a 9/17 - 10/16 to keep the motor happy. With a properly pitched impeller it is absolutely worth doing the 750 pump upgrade.
    -95 750SXI
    -86 440 with PJS800 conversion - http://www.pwctoday.com/showthread.php?t=466927
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    -81 JS440
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